Physical Broadcast Channel Design

ABSTRACT

Briefly, in accordance with one or more embodiments, apparatus of an evolved NodeB (eNB) comprises circuitry to configure one or more parameters for a 5G master information block (xMIB). The xMIB contains at least one of the following parameters: downlink system bandwidth, system frame number (SFN), or configuration for other physical channels, or a combination thereof. The apparatus of the eNB comprises circuitry to transmit the xMIB via a 5G physical broadcast channel (xPBCH) on a predefined resource, the xPBCH comprising a xPBCH. The xPBCH may use a DM-RS based transmission mode, and a beamformed xPBCH may be used for mid band and high band.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. application Ser. No.15/565,466 filed Oct. 10, 2107 which is a national stage filing ofInternational Application No. PCT/US2015/066922 filed Dec. 18, 2015which in turn claims the benefit of U.S. Provisional Application No.62/199,175 filed Jul. 30, 2015 (Docket No. P87641Z). Said applicationSer. No. 15/565,466, said Application No. Application No.PCT/US2015/066922, and said Application No. 62/199,175 are herebyincorporated herein by reference in their entireties.

BACKGROUND

Mobile communication has evolved significantly from early voice systemsto today's highly sophisticated integrated communication platform.Networks operating in according with a Third Generation PartnershipProject (3GPP) and such as Fourth Generation (4G) Long Term Evolution(LTE) standard are deployed in more than 100 countries to provideservice in various spectrum band allocations depending on the spectrumregime. Recently, significant momentum has started to build around theidea of a next generation of wireless communications technology referredto as the Fifth Generation (5G).

The next generation 5G wireless communication systems will provideaccess to information and sharing of data anywhere, anytime by varioususers and applications. Next generation 5G technology is expected toprovide a unified network and system to meet vastly different, andsometime conflicting, performance dimensions and services. Such diversemulti-dimensional specifications are driven by different services andapplications. In order to address vastly diverse specifications, 5G willbe the set of technical components and systems to overcome the limits ofcurrent systems. In general, 5G will evolve based on 3GPP LTE-Advancedstandards with additional potential new Radio Access Technologies (RATs)to enrich users with better, simpler and more seamless wirelessconnectivity solutions. In addition, 5G will enable everything connectedby wireless networks to deliver fast and rich contents and services.

DESCRIPTION OF THE DRAWING FIGURES

Claimed subject matter is particularly pointed out and distinctlyclaimed in the concluding portion of the specification. However, suchsubject matter may be understood by reference to the following detaileddescription when read with the accompanying drawings in which:

FIG. 1A and FIG. 1B are diagrams of generation procedures for a physicalbroadcast channel (PBCH) structure including an xPBCH generationprocedure in accordance with one or more embodiments;

FIG. 2 are diagrams of example demodulation reference symbol (DM-RS)patterns in accordance with one or more embodiments;

FIG. 3 is a diagram of xPBCH resource mapping for transmit (Tx)diversity with two access points in accordance with one or moreembodiments;

FIG. 4 is a diagram of xPBCH transmission time for low band inaccordance with one or more embodiments;

FIG. 5 is a diagram of an example of transmit (Tx) beamformed xPBCHtransmission in accordance with one or more embodiments;

FIG. 6 is a diagram of another example of transmit (Tx) beamformed xPBCHtransmission in accordance with one or more embodiments;

FIG. 7 is a diagram of yet another example of transmit (Tx) beamformedxPBCH transmission in accordance with one or more embodiments;

FIG. 8 is a block diagram of an information handling system capable oftransmitting or receiving a physical broadcast channel in accordancewith one or more embodiments;

FIG. 9 is an isometric view of an information handling system of FIG. 6that optionally may include a touch screen in accordance with one ormore embodiments; and

FIG. 10 is a diagram of example components of a wireless device inaccordance with one or more embodiments.

It will be appreciated that for simplicity and/or clarity ofillustration, elements illustrated in the figures have not necessarilybeen drawn to scale. For example, the dimensions of some of the elementsmay be exaggerated relative to other elements for clarity. Further, ifconsidered appropriate, reference numerals have been repeated among thefigures to indicate corresponding and/or analogous elements.

DETAILED DESCRIPTION

In the following detailed description, numerous specific details are setforth to provide a thorough understanding of claimed subject matter.However, it will be understood by those skilled in the art that claimedsubject matter may be practiced without these specific details. In otherinstances, well-known methods, procedures, components and/or circuitshave not been described in detail.

In the following description and/or claims, the terms coupled and/orconnected, along with their derivatives, may be used. In particularembodiments, connected may be used to indicate that two or more elementsare in direct physical and/or electrical contact with each other.Coupled may mean that two or more elements are in direct physical and/orelectrical contact. However, coupled may also mean that two or moreelements may not be in direct contact with each other, but yet may stillcooperate and/or interact with each other. For example, “coupled” maymean that two or more elements do not contact each other but areindirectly joined together via another element or intermediate elements.Finally, the terms “on,” “overlying,” and “over” may be used in thefollowing description and claims. “On,” “overlying,” and “over” may beused to indicate that two or more elements are in direct physicalcontact with each other. However, “over” may also mean that two or moreelements are not in direct contact with each other. For example, “over”may mean that one element is above another element but not contact eachother and may have another element or elements in between the twoelements. Furthermore, the term “and/or” may mean “and”, it may mean“or”, it may mean “exclusive-or”, it may mean “one”, it may mean “some,but not all”, it may mean “neither”, and/or it may mean “both”, althoughthe scope of claimed subject matter is not limited in this respect. Inthe following description and/or claims, the terms “comprise” and“include,” along with their derivatives, may be used and are intended assynonyms for each other.

Referring now to FIG. 1A and FIG. 1B, diagrams of generation proceduresfor a physical broadcast channel (PBCH) structure including an xPBCHgeneration procedure in accordance with one or more embodiments will bediscussed. FIG. 1A illustrates generation of the physical broadcastchannel (PBCH) structure 100 for a network operating in accordance witha Third Generation Partnership Project (3GPP) standard such as a LongTerm Evolution (LTE) standard. FIG. 1B illustrates generation of thephysical broadcast structure (xPBCH) for a network operating inaccordance with a Fifth Generation (5G) standard. It should be notedthat terms that include the prefix “x” may refer to a 5G standard,although the scope of the claimed subject matter is not necessarilylimited in this respect. In one or more embodiments, the xPBCH 210 ofFIG. 1B optionally may incorporate one or more portions of the PBCH ofFIG. 1B, with one or more new, additional procedures for generation ofthe new xPBCH structure of FIG. 1B, although the scope of the claimedsubject matter is not limited in this respect. As shown in FIG. 1A, onebroadcast channel (BCH) transport block is shown at 110, and a next BCHtransport block is shown at 112. The frame periods are also shown, forexample a periodicity of 40 ms for four radio frames, although the scopeof the claimed subject matter is not limited in this respect. A MasterInformation Block (MIB) includes the information about downlink cellbandwidth, physical hybrid-ARQ indicator channel (PHICH) configuration,and System Frame Number (SFN). In particular, one MIB contains 14information bits and 10 spare bits, which is appended by 16 bit cyclicredundancy check (CRC). The Tail Biting Convolutional Code (TBCC) isapplied to the CRC-attached information bits and then rate-matching withthe encoded bits is performed, which produces 1920 encoded bits and 1728encoded bits for normal and extended cyclic prefix (CP), respectively.

Subsequently, a cell-specific scrambling code is applied on top ofencoded bits to randomize the inter-cell interference. The cell-specificscrambling code is re-initialized at every 40 ms and thus can providethe function to distinguish 2-bit Least Significant Bit (LSB) of systemframe number (SFN), which is the 10 milliseconds (ms), comprising oneradio frame, boundary detection among 40 ms, comprising four radioframes, via the different phases of cell-specific scrambling sequences.

The PBCH is transmitted within the first four orthogonalfrequency-division multiplexing (OFDM) symbols of the second slot ofsubframe zero (0) and only over the 72 center subcarriers excludingresource elements reserved for cell-specific reference signals (CRS) forfour antenna ports. Thus, in the case of frequency division duplex(FDD), the PBCH follows immediately after the Primary SynchronizationSignal (PSS) and Secondary Synchronization Signal (SSS) in subframe 0.Transmit antenna diversity may be also employed at the evolved NodeB(eNB) to further enhance coverage, depending on the capability of theeNB. More specifically, eNBs with two or four transmit antenna portstransmit the PBCH using a Space-Frequency Block Code (SFBC). Thetransmission mode of the PBCH as well as the number of PBCH antennaports is blindly detected at the user equipment (UE) and is also encodedin the CRC of the MIB by scrambling the CRC bits depending on the numberof PBCH antenna ports at the eNB.

The xMIB consists of a limited number of the most frequently transmittedparameters essential for initial access to the cell. Similar to a LongTerm Evolution (LTE) specification of 3GPP, the xMIB may also carry theinformation regarding the system bandwidth. This field can be X₀ bits,which depends on the number of system bandwidth to be defined in a FifthGeneration (5G) standard. Alternatively, the system bandwidth can beUE-specifically configured as part of the radio resource control (RRC)connection setup, reconfiguration, or reestablishment. In this case,X₀=0. For a 5G system, PHICH may not be used or may be replaced by thexPDCCH. This indicates that PHICH configuration in the existing LTEspecification optionally may not be used in the xMIB.

Similar to current LTE systems, xMIB content may also include theinformation about the SFN. The exact number of bits for SFN depends onthe periodicity and number of scrambling phases for xPBCH transmission.If a single xPBCH block is transmitted during xPBCH periodicity, thenumber of bits for SFN in xMIB can be X₁ bits, for example X₁=10 asdefined in an LTE specification. In another example, if xPBCHtransmission periodicity is 80 ms and eight xPBCH blocks are transmittedduring an 80 ms interval, the number of the bits for SFN in xMIB can beX₁−log 2 (8)=(X₁−3) bits.

Furthermore, the xMIB may contain the configuration information forother physical channels. In one example, a 5G physical downlink controlchannel (xPDCCH) configuration for common search space may be includedin the xMIB. After successfully decoding the xPBCH, UE can obtain theinformation for xPDCCH configuration and subsequently attempts to decodethe system information block (xSIB).

Based on the analysis above, Table 1 summarizes the potential xMIBcontent for a xPBCH design. Note that certain number of spare bits maybe reserved for further release.

TABLE 1 xMIB content for xPBCH design Parameters Number of bits Downlinksystem bandwidth X₀ SFN information X₁ or less Configuration for otherphysical X₂ channels

FIG. 1B illustrates example operations to generate the xPBCH inaccordance with one or more embodiments. In one example, at block 114CRC may be appended after the xMIB. In one embodiment, the existing16-bit CRC in an LTE specification may be reused. Furthermore, the sameoperation on a CRC mask with a codeword corresponding to the number oftransmit antenna ports may be employed for a xPBCH design as discussedherein. In another embodiment, to further reduce the false alarm ratedue to multiple hypotheses tests with transmit (Tx) beamed xPBCHtransmissions, the CRC size may be increased to 24-bits. In one example,the CRC with 24 bits as defined in an LTE specification may be reusedwherein the parity bits are generated by one of the following cyclicgenerator polynomials:

g _(CRC24A)(D)=[D24+D23+D18+D17+D14+D11+D10+D7+D6+D5+D4+D3+D+1] and;

g _(CRC24B)(D)=[D24+D23+D6+D5+D+1] for a CRC length L=24

In yet another embodiment, the CRC mask with the codeword correspondingto the number of transmit antenna ports is not employed for xPBCHtransmission. Such an arrangement would reduce the number of blinddetection attempts and consequently UE power consumption.

Furthermore, to minimize the implementation cost, the existingtail-biting convolution coding (TBCC) scheme can be reused at block 116.After the channel coding, rate matching is performed at block 118 tofill out the available resource elements (REs) for xPBCH transmission.Depending on the number of scrambling phases, one or a plurality ofsubframes can be allocated for the transmission of xPBCH within onexPBCH periodicity. Furthermore, one xPBCH transmission block may occupyN OFDM symbols of M physical resource block (PRB) pairs. For example,M=6 and N=4 as defined in a current LTE specification.

After the channel coding and rate-matching, scrambling is performed atblock 120 in order to randomize the interference and potentially toidentify the SFN boundaries within an xPBCH transmission time interval.In particular, similar scrambling procedure as in an existing LTEspecification may be applied. In one embodiment, the scrambling sequencemay be initialized with the physical cell identifier (ID), for examplec_(init)=N_(ID) ^(cell). In a further embodiment, in the case of “singlefrequency network” type of operation wherein multiple eNBs transmit thexPBCH simultaneously on the same time and frequency resource, thescrambling sequence may be initialized with a predefined value or acluster/sub-cluster ID. In other words, the scrambling seed is commonamong multiple eNBs when transmitting the xPBCH. In another embodiment,as interference randomization is not needed in the above case, onealternative is not to employ scrambling for xPBCH transmission timeinterval (TTI) indication, but to mask CRC with a codeword representingy-bit LSB of SFN, for example y=2. It may be beneficial in terms ofprocessing complexity to check CRC four times instead of performing TBCCdecoding four times. The number of antenna ports can be blindly detectedfrom code-division multiplexing (CDM) based demodulation referencesignals (DM-RS). Subsequently, quadrature phase shift keying (QPSK) canbe used for the modulation at block 122. Antenna mapping anddemultiplexing then may be performed.

Referring now to FIG. 2 , diagrams of example demodulation referencesymbol (DM-RS) patterns in accordance with one or more embodiments willbe discussed. For lean system design, a cell specific reference symbolmay not be present in order to reduce the overhead. Based on thisconcept, a Demodulation Reference Symbol (DM-RS) based transmissionscheme may be be applied for the transmission of xPBCH. In particular,the same beamforming weight may be applied for both DM-RS and datasymbols allocated for the xPBCH. Depending on the number of antennaports (AP) used for xPBCH transmission, single layer transmission ortransmit (Tx) diversity may be employed.

FIG. 2 illustrates example of DM-RS patterns for xPBCH transmission withone access point (AP) for example 210 and two APs for example 212 andexample 214, respectively. Note that the same DM-RS pattern may beapplied on all the M PRBs. In the example shown in FIG. 2 , four OFDMsymbols may be assumed for the transmission of one xPBCH block whereinN=4. Note that other DM-RS patterns and the DM-RS patterns for four ormore APs easily may be extended from the examples as shown in FIG. 2 .In the case where two APs are used for xPBCH transmission, the DM-RSpattern for AP0 and AP1 may be separated in either code-divisionmultiplexing (CDM) as shown in example 212 (Option A) orfrequency-division multiplexing (FDM) as shown in example 214 (OptionB). In one particular embodiment, for a CDM based DM-RS pattern as shownin example 212, orthogonal cover code (OCC) applied on the DM-RS for twoAPs may be [1 1] and [1 −1], respectively.

Referring now to FIG. 3 , a diagram of xPBCH resource mapping fortransmit (Tx) diversity with two access points (APs) in accordance withone or more embodiments will be discussed. In the case of two APs,transmit (Tx) diversity may be employed to increase the link levelperformance. Depending on the DM-RS pattern, the resource mapping forthe transmission of xPBCH may be different. FIG. 3 illustrates oneexample of xPBCH resource mapping scheme for Tx diversity with two APswhen a code-division multiplexing (CDM) based Demodulation ReferenceSymbol (DM-RS) pattern is employed. More specifically, a localizedresource mapping scheme is shown in example 310 (Option 1) and adistributed resource mapping scheme is shown in example 312 (Option 2).Note that other resource mapping schemes for different DM-RS patternsand/or for different number of APs may be extended straightforwardlyfrom the examples shown in FIG. 3 . Furthermore, similar to an existingLTE specification, the user equipment (UE) may blindly detect the numberof APs for the transmission of the xPBCH. As mentioned above, the numberof APs may be indicated via the CRC mask. Note that the time resource,for example symbol, slot, subframe or frame index, and frequencyresource, for example subcarrier and PRB index, for the transmission ofxPBCH may be predefined to facilitate the UE to quickly obtain theinformation for initial access. Several options may be considered forthe time and/or frequency resource allocation for the xPBCH transmissionas discussed, below.

In one embodiment, the xPBCH may be transmitted in the same subframe asxPSS/xSSS. In one example, the xPBCH and the xPSS/xSSS occupy theminimum system bandwidth to allow the UE to access the network with lowcomplexity. In another example, in the case when the minimum systembandwidth is relatively large, multiple sub-bands may be allocated forthe transmission of the xPSS/xSSS and/or the xPBCH. In this case, thexPSS/xSSS may be transmitted in the central sub-band while the xPBCH maybe transmitted adjacent to the central sub-band. Alternatively, thexPBCH may be transmitted on different symbols from xPSS/xSSS, but withthe same frequency location, for example in the central sub-band ormultiple sub-bands. Note that compared to an existing LTE specification,the xPSS/xSSS also may serve the purpose of beam acquisition formid-band and high band.

In another embodiment, a fixed subframe gap between the transmission ofthe xPBCH and the xPSS/xSSS may be specified. In one example, the xPBCHmay be transmitted in the subframe next to the xPSS/xSSS transmission.This scheme may be appropriate for mid-band and high band when transmit(Tx) beamforming or repetition is applied for the transmission of thexPSS and the xSSS. In this case, the xPSS/xSSS and the xPBCH may spanone or more subframes. In another example, the xPBCH may be transmittedbefore the xPSS/xSSS. Alternatively, the xPSS/xSSS may be transmittedbetween multiple xPBCH blocks.

Referring now to FIG. 4 , a diagram of xPBCH transmission time for lowband in accordance with one or more embodiments will be discussed. Inthe low band, the carrier frequency below 6 GHz, several options may beconsidered for the xPBCH transmission scheme. In one embodiment, asingle xPBCH block, wherein L=1, may be transmitted during an X msinterval. Such an arrangement may help to reduce the number of blinddecoding attempts, and consequently power consumption. In one example,X=40 ms as defined in an LTE specification.

In another embodiment, multiple xPBCH blocks, wherein L>1, may betransmitted during an X ms interval. FIG. 4 illustrates the xPBCHtransmission time for low band. As shown in FIG. 4 , the xPBCH can betransmitted with periodicity of X ms, and L xPBCH blocks may betransmitted within this X ms period. In other words, the scrambling codemay be reinitialized at every X ms, and L different scrambling phasesmay be generated within X ms. In this case, the UE may perform multipleblind decoding attempts to obtain the xMIB information. If each block isself-decodable, however, cell attachment latency may be reduced from Xto X/L ms.

Referring now to FIG. 5 and FIG. 6 , diagrams of example of transmit(Tx) beamformed xPBCH transmissions in accordance with one or moreembodiments will be discussed. In the mid-band with a carrier frequencybetween 6 GHz and 30 GHz and high band with a carrier frequency beyond30G Hz, beamforming may be utilized to ensure proper coverage. FIG. 5and FIG. 6 illustrate examples of transmit (Tx) beamformed or repeatedxPBCH transmission. Note that although as shown in FIG. 5 and FIG. 6 , atransmit (Tx) beamformed xPBCH is considered, the same design principlemay be applied for repeated xPBCH transmissions. Additionally, for thetwo examples shown in FIG. 5 and FIG. 6 , a same scrambling phase may beapplied to multiple xPBCH blocks within the xPBCH transmissionperiodicity, namely X ms as shown in FIG. 5 and FIG. 6 . In this case,xPBCH blocks within a given transmit (Tx) beam group carry the same SFNinformation, and the SFN bits vary over each Tx beam group. Forcooperative xPBCH transmission, different eNBs may transmit the xPBCHblock in different time and/or frequency resources. For example, in FIG.5 , xPBCH block #0 may be transmitted by eNB #0 while xPBCH block #1 maybe transmitted by eNB #1.

In FIG. 5 , the xPBCH blocks are transmitted one subframe after thexPSS/xSSS transmission and occupy the central M PRBs. Within an X msxPBCH transmission periodicity, L Tx beam groups may be used for thexPBCH transmission. In this example, L=4 and the total number of Txbeams or repeated xPBCH blocks within the X ms period is 12. In FIG. 6 ,xPBCH blocks are transmitted in the same subframe for the xPSS/xSSStransmission and occupy M PRBs which are adjacent to the xPSS/xSSS. Inthis example, totally 24 Tx beams or repeated block are used for thetransmission of xPBCH within the X ms period.

Referring now to FIG. 7 , a diagram of yet another example of transmit(Tx) beamformed xPBCH transmission in accordance with one or moreembodiments will be discussed. In FIG. 7 , the channel coded and symbolmodulated xPBCH is de-multiplexed into eight xPBCH blocks. A givenself-decodable xPBCH block may be beamformed with 32 different transmit(Tx) beams, and resulting multiple beamformed blocks may be transmittedon different sub-bands of OFDM, or other block transmission waveform,symbols allocated for xPBCH transmission. In mid-to-high frequencybands, the minimum system bandwidth may be defined with a large numberof resource blocks (RBs), for example 100 RBs with 75 kHz subcarrierspacing. As shown in FIG. 7 , xPBCH Tx beam to sub-band mapping may becircularly shifted over different xPBCH blocks. Such an arrangement iscapable of providing time and frequency diversity gains to coveragelimited UEs which may perform soft bit combining of multiple xPBCHblocks for reliable decoding of the xPBCH.

It should be noted that different number of transmit (Tx) beams andresource allocation schemes, for example allocation of multiplesub-bands in the frequency domain, may be extended straightforwardlyfrom the examples as shown in FIG. 5 , FIG. 6 , or FIG. 7 . The xPBCHtransmission resource size, for example the number of symbols and/or thenumber of PRBs or sub-bands, may be predetermined in a way that thepredetermined resource size may accommodate the maximum number of beamsets within a cell or within a network. Each beam set may comprise oneor more beams from different eNBs or different array antennas within thesame eNB, and may be mapped to one unique time and/or frequency resourcefor xPBCH transmission. Beam diversity based xPBCH transmission may bebeneficial to reduce the xPBCH overhead without losing the beamcoverage.

Regarding the Tx beam patterns for the xPBCH transmission, severaloptions can be considered as follows. In one embodiment, the transmit(Tx) beam pattern is up to implementation by the eNB. The UE may assumethat different Tx beams are applied for different xPBCH blocks. In thiscase, the UE first measures the energy of the DM-RS on the correspondingresources. If the measured DM-RS energy is above a certain threshold,the UE then attempts to decode the xPBCH block.

In another embodiment, the transmit (Tx) beam index or the time and/orfrequency resource for the xPBCH transmission may be defined as afunction of the beam index used for the transmission of the xPSS and/orthe xSSS and/or cell ID. After acquiring the Tx beam index from xPSSand/or the xSSS, the UE may derive the location of best Tx beam indexfor the xPBCH transmission. In this case, the UE does not have tomeasure the DM-RS for all the xPBCH blocks, thereby reducing the powerconsumption. For instance, in FIG. 5 , a one-to-one mapping between theTx beam index used for the xPSS and the xPBCH block may be defined. Inthis case, the UE only has to search a limited number of resources forxPBCH decoding.

As mentioned, above, in the case of “single frequency network” type ofoperation, multiple eNBs transmit the xPBCH block simultaneously on thesame time and frequency resource, which may help to exploit the benefitof multi-site beam diversity. Furthermore, DM-RS and data symbols usedfor xPBCH transmission may use the same multiple beams from multipleeNBs to allow proper channel estimation.

Referring now to FIG. 8 , a block diagram of an information handlingsystem capable of transmitting or receiving a physical broadcast channelin accordance with one or more embodiments will be discussed.Information handling system 800 of FIG. 8 may tangibly embody any one ormore of the network elements described herein with greater or fewercomponents depending on the hardware specifications of the particulardevice. In one embodiment, information handling system 800 may tangiblyembody an apparatus of an evolved NodeB (eNB) comprising circuitry toconfigure, via baseband processing circuitry, one or more parameters fora Fifth Generation (5G) master information block (xMIB), wherein thexMIB contains at least one of the following parameters: downlink systembandwidth, system frame number (SFN), or configuration for otherphysical channels, or a combination thereof, and transmit, viaradio-frequency processing circuitry, the xMIB via a 5G physicalbroadcast channel (xPBCH) on a predefined resource. In anotherembodiment, information handling system 800 may tangibly may embody oneor more computer-readable media having instructions stored thereon that,if executed by an evolved NodeB (eNB), result in configuring one or moreparameters for a Fifth Generation (5G) master information block (xMIB)for a 5G physical broadcast channel transmission (xPBCH), applying aDemodulation Reference Symbol (DM-RS) based transmission for the xPBCHtransmission, wherein a same beamforming weight is applied for bothDM-RS and for data symbols allocated for the xPBCH, and transmitting thexMIB via the xPBCH on a predefined resource. Although informationhandling system 800 represents one example of several types of computingplatforms, information handling system 800 may include more or fewerelements and/or different arrangements of elements than shown in FIG. 8, and the scope of the claimed subject matter is not limited in theserespects.

In one or more embodiments, information handling system 800 may includean application processor 810 and a baseband processor 812. Applicationprocessor 810 may be utilized as a general-purpose processor to runapplications and the various subsystems for information handling system800. Application processor 810 may include a single core oralternatively may include multiple processing cores. One or more of thecores may comprise a digital signal processor or digital signalprocessing (DSP) core. Furthermore, application processor 810 mayinclude a graphics processor or coprocessor disposed on the same chip,or alternatively a graphics processor coupled to application processor810 may comprise a separate, discrete graphics chip. Applicationprocessor 810 may include on board memory such as cache memory, andfurther may be coupled to external memory devices such as synchronousdynamic random access memory (SDRAM) 814 for storing and/or executingapplications during operation, and NAND flash 816 for storingapplications and/or data even when information handling system 800 ispowered off. In one or more embodiments, instructions to operate orconfigure the information handling system 800 and/or any of itscomponents or subsystems to operate in a manner as described herein maybe stored on an article of manufacture comprising a non-transitorystorage medium. In one or more embodiments, the storage medium maycomprise any of the memory devices shown in and described herein,although the scope of the claimed subject matter is not limited in thisrespect. Baseband processor 812 may control the broadband radiofunctions for information handling system 800. Baseband processor 812may store code for controlling such broadband radio functions in a NORflash 818. Baseband processor 812 controls a wireless wide area network(WWAN) transceiver 820 which is used for modulating and/or demodulatingbroadband network signals, for example for communicating via a 3GPP LTEor LTE-Advanced network or the like.

In general, WWAN transceiver 820 may operate according to any one ormore of the following radio communication technologies and/or standardsincluding but not limited to: a Global System for Mobile Communications(GSM) radio communication technology, a General Packet Radio Service(GPRS) radio communication technology, an Enhanced Data Rates for GSMEvolution (EDGE) radio communication technology, and/or a ThirdGeneration Partnership Project (3GPP) radio communication technology,for example Universal Mobile Telecommunications System (UMTS), Freedomof Multimedia Access (FOMA), 3GPP Long Term Evolution (LTE), 3GPP LongTerm Evolution Advanced (LTE Advanced), Code division multiple access2000 (CDMA2000), Cellular Digital Packet Data (CDPD), Mobitex, ThirdGeneration (3G), Circuit Switched Data (CSD), High-SpeedCircuit-Switched Data (HSCSD), Universal Mobile TelecommunicationsSystem (Third Generation) (UMTS (3G)), Wideband Code Division MultipleAccess (Universal Mobile Telecommunications System) (W-CDMA (UMTS)),High Speed Packet Access (HSPA), High-Speed Downlink Packet Access(HSDPA), High-Speed Uplink Packet Access (HSUPA), High Speed PacketAccess Plus (HSPA+), Universal Mobile TelecommunicationsSystem-Time-Division Duplex (UMTS-TDD), Time Division-Code DivisionMultiple Access (TD-CDMA), Time Division-Synchronous Code DivisionMultiple Access (TD-CDMA), 3rd Generation Partnership Project Release 8(Pre-4th Generation) (3GPP Rel. 8 (Pre-4G)), 3GPP Rel. 9 (3rd GenerationPartnership Project Release 9), 3GPP Rel. 10 (3rd Generation PartnershipProject Release 10), 3GPP Rel. 11 (3rd Generation Partnership ProjectRelease 11), 3GPP Rel. 12 (3rd Generation Partnership Project Release12), 3GPP Rel. 13 (3rd Generation Partnership Project Release 12), 3GPPRel. 14 (3rd Generation Partnership Project Release 12), 3GPP LTE Extra,LTE Licensed-Assisted Access (LAA), UMTS Terrestrial Radio Access(UTRA), Evolved UMTS Terrestrial Radio Access (E-UTRA), Long TermEvolution Advanced (4th Generation) (LTE Advanced (4G)), cdmaOne (2G),Code division multiple access 2000 (Third generation) (CDMA2000 (3G)),Evolution-Data Optimized or Evolution-Data Only (EV-DO), Advanced MobilePhone System (1st Generation) (AMPS (1G)), Total Access CommunicationSystem/Extended Total Access Communication System (TACS/ETACS), DigitalAMPS (2nd Generation) (D-AMPS (2G)), Push-to-talk (PTT), MobileTelephone System (MTS), Improved Mobile Telephone System (IMTS),Advanced Mobile Telephone System (AMTS), OLT (Norwegian for OffentligLandmobil Telefoni, Public Land Mobile Telephony), MTD (Swedishabbreviation for Mobiltelefonisystem D, or Mobile telephony system D),Public Automated Land Mobile (Autotel/PALM), ARP (Finnish forAutoradiopuhelin, “car radio phone”), NMT (Nordic Mobile Telephony),High capacity version of NTT (Nippon Telegraph and Telephone) (Hicap),Cellular Digital Packet Data (CDPD), Mobitex, DataTAC, IntegratedDigital Enhanced Network (iDEN), Personal Digital Cellular (PDC),Circuit Switched Data (CSD), Personal Handy-phone System (PHS), WidebandIntegrated Digital Enhanced Network (WiDEN), iBurst, Unlicensed MobileAccess (UMA), also referred to as also referred to as 3GPP GenericAccess Network, or GAN standard), Zigbee, Bluetooth®, Wireless GigabitAlliance (WiGig) standard, millimeter wave (mmWave) standards in generalfor wireless systems operating at 10-90 GHz and above such as WiGig,IEEE 802.11ad, IEEE 802.11ay, and so on, and/or general telemetrytransceivers, and in general any type of RF circuit or RFI sensitivecircuit. It should be noted that such standards may evolve over time,and/or new standards may be promulgated, and the scope of the claimedsubject matter is not limited in this respect.

The WWAN transceiver 820 couples to one or more power amps 842respectively coupled to one or more antennas 824 for sending andreceiving radio-frequency signals via the WWAN broadband network. Thebaseband processor 812 also may control a wireless local area network(WLAN) transceiver 826 coupled to one or more suitable antennas 828 andwhich may be capable of communicating via a Wi-Fi, Bluetooth®, and/or anamplitude modulation (AM) or frequency modulation (FM) radio standardincluding an IEEE 802.11 a/b/g/n standard or the like. It should benoted that these are merely example implementations for applicationprocessor 810 and baseband processor 812, and the scope of the claimedsubject matter is not limited in these respects. For example, any one ormore of SDRAM 614, NAND flash 816 and/or NOR flash 818 may compriseother types of memory technology such as magnetic memory, chalcogenidememory, phase change memory, or ovonic memory, and the scope of theclaimed subject matter is not limited in this respect.

In one or more embodiments, application processor 810 may drive adisplay 830 for displaying various information or data, and may furtherreceive touch input from a user via a touch screen 832 for example via afinger or a stylus. An ambient light sensor 834 may be utilized todetect an amount of ambient light in which information handling system800 is operating, for example to control a brightness or contrast valuefor display 830 as a function of the intensity of ambient light detectedby ambient light sensor 834. One or more cameras 836 may be utilized tocapture images that are processed by application processor 810 and/or atleast temporarily stored in NAND flash 816. Furthermore, applicationprocessor may couple to a gyroscope 838, accelerometer 840, magnetometer842, audio coder/decoder (CODEC) 844, and/or global positioning system(GPS) controller 846 coupled to an appropriate GPS antenna 848, fordetection of various environmental properties including location,movement, and/or orientation of information handling system 800.Alternatively, controller 846 may comprise a Global Navigation SatelliteSystem (GNSS) controller. Audio CODEC 844 may be coupled to one or moreaudio ports 850 to provide microphone input and speaker outputs eithervia internal devices and/or via external devices coupled to informationhandling system via the audio ports 850, for example via a headphone andmicrophone jack. In addition, application processor 810 may couple toone or more input/output (I/O) transceivers 852 to couple to one or moreI/O ports 854 such as a universal serial bus (USB) port, ahigh-definition multimedia interface (HDMI) port, a serial port, and soon. Furthermore, one or more of the I/O transceivers 852 may couple toone or more memory slots 856 for optional removable memory such assecure digital (SD) card or a subscriber identity module (SIM) card,although the scope of the claimed subject matter is not limited in theserespects.

Referring now to FIG. 9 , an isometric view of an information handlingsystem of FIG. 8 that optionally may include a touch screen inaccordance with one or more embodiments will be discussed. FIG. 9 showsan example implementation of information handling system 800 of FIG. 8tangibly embodied as a cellular telephone, smartphone, or tablet typedevice or the like. The information handling system 800 may comprise ahousing 910 having a display 830 which may include a touch screen 832for receiving tactile input control and commands via a finger 916 of auser and/or a via stylus 918 to control one or more applicationprocessors 810. The housing 910 may house one or more components ofinformation handling system 800, for example one or more applicationprocessors 810, one or more of SDRAM 814, NAND flash 816, NOR flash 818,baseband processor 812, and/or WWAN transceiver 820. The informationhandling system 800 further may optionally include a physical actuatorarea 920 which may comprise a keyboard or buttons for controllinginformation handling system via one or more buttons or switches. Theinformation handling system 800 may also include a memory port or slot856 for receiving non-volatile memory such as flash memory, for examplein the form of a secure digital (SD) card or a subscriber identitymodule (SIM) card. Optionally, the information handling system 800 mayfurther include one or more speakers and/or microphones 924 and aconnection port 854 for connecting the information handling system 800to another electronic device, dock, display, battery charger, and so on.In addition, information handling system 800 may include a headphone orspeaker jack 928 and one or more cameras 836 on one or more sides of thehousing 910. It should be noted that the information handling system 800of FIG. 9 may include more or fewer elements than shown, in variousarrangements, and the scope of the claimed subject matter is not limitedin this respect.

As used herein, the term “circuitry” may refer to, be part of, orinclude an Application Specific Integrated Circuit (ASIC), an electroniccircuit, a processor (shared, dedicated, or group), and/or memory(shared, dedicated, or group) that execute one or more software orfirmware programs, a combinational logic circuit, and/or other suitablehardware components that provide the described functionality. In someembodiments, the circuitry may be implemented in, or functionsassociated with the circuitry may be implemented by, one or moresoftware or firmware modules. In some embodiments, circuitry may includelogic, at least partially operable in hardware. Embodiments describedherein may be implemented into a system using any suitably configuredhardware and/or software.

Referring now to FIG. 10 , example components of a wireless device suchas an evolved NodeB (eNB) device or a User Equipment (UE) device inaccordance with one or more embodiments will be discussed. For purposesof discussion, the wireless device of FIG. 10 will be referred to as aneNB device, although the scope of the claimed subject matter is notlimited in this respect. In some embodiments, eNB device 1000 mayinclude application circuitry 1002, baseband circuitry 1004, RadioFrequency (RF) circuitry 1006, front-end module (FEM) circuitry 1008 andone or more antennas 1010, coupled together at least as shown.

Application circuitry 1002 may include one or more applicationprocessors. For example, application circuitry 1002 may includecircuitry such as, but not limited to, one or more single-core ormulti-core processors. The one or more processors may include anycombination of general-purpose processors and dedicated processors, forexample graphics processors, application processors, and so on. Theprocessors may be coupled with and/or may include memory and/or storageand may be configured to execute instructions stored in the memoryand/or storage to enable various applications and/or operating systemsto run on the system.

Baseband circuitry 1004 may include circuitry such as, but not limitedto, one or more single-core or multi-core processors. Baseband circuitry1004 may include one or more baseband processors and/or control logic toprocess baseband signals received from a receive signal path of RFcircuitry 1006 and to generate baseband signals for a transmit signalpath of the RF circuitry 1006. Baseband processing circuitry 1004 mayinterface with the application circuitry 1002 for generation andprocessing of the baseband signals and for controlling operations of theRF circuitry 1006. For example, in some embodiments, the basebandcircuitry 804 may include a second generation (2G) baseband processor1004 a, third generation (3G) baseband processor 1004 b, fourthgeneration (4G) baseband processor 1004 c, and/or one or more otherbaseband processors 1004 d for other existing generations, generationsin development or to be developed in the future, for example fifthgeneration (5G), sixth generation (6G), and so on. Baseband circuitry1004, for example one or more of baseband processors 1004 a through 1004d, may handle various radio control functions that enable communicationwith one or more radio networks via RF circuitry 1006. The radio controlfunctions may include, but are not limited to, signal modulation and/ordemodulation, encoding and/or decoding, radio frequency shifting, and soon. In some embodiments, modulation and/or demodulation circuitry ofbaseband circuitry 1004 may include Fast-Fourier Transform (FFT),precoding, and/or constellation mapping and/or demapping functionality.In some embodiments, encoding and/or decoding circuitry of basebandcircuitry 804 may include convolution, tail-biting convolution, turbo,Viterbi, and/or Low Density Parity Check (LDPC) encoder and/or decoderfunctionality. Embodiments of modulation and/or demodulation and encoderand/or decoder functionality are not limited to these examples and mayinclude other suitable functionality in other embodiments.

In some embodiments, baseband circuitry 1004 may include elements of aprotocol stack such as, for example, elements of an evolved universalterrestrial radio access network (EUTRAN) protocol including, forexample, physical (PHY), media access control (MAC), radio link control(RLC), packet data convergence protocol (PDCP), and/or radio resourcecontrol (RRC) elements. Processor 1004 e of the baseband circuitry 1004may be configured to run elements of the protocol stack for signaling ofthe PHY, MAC, RLC, PDCP and/or RRC layers. In some embodiments, thebaseband circuitry may include one or more audio digital signalprocessors (DSP) 1004 f The one or more audio DSPs 1004 f may includeelements for compression and/or decompression and/or echo cancellationand may include other suitable processing elements in other embodiments.Components of the baseband circuitry may be suitably combined in asingle chip, a single chipset, or disposed on a same circuit board insome embodiments. In some embodiments, some or all of the constituentcomponents of baseband circuitry 1004 and application circuitry 1002 maybe implemented together such as, for example, on a system on a chip(SOC).

In some embodiments, baseband circuitry 1004 may provide forcommunication compatible with one or more radio technologies. Forexample, in some embodiments, baseband circuitry 1004 may supportcommunication with an evolved universal terrestrial radio access network(EUTRAN) and/or other wireless metropolitan area networks (WMAN), awireless local area network (WLAN), a wireless personal area network(WPAN). Embodiments in which baseband circuitry 804 is configured tosupport radio communications of more than one wireless protocol may bereferred to as multi-mode baseband circuitry.

RF circuitry 1006 may enable communication with wireless networks usingmodulated electromagnetic radiation through a non-solid medium. Invarious embodiments, RF circuitry 1006 may include switches, filters,amplifiers, and so on, to facilitate the communication with the wirelessnetwork. RF circuitry 1006 may include a receive signal path which mayinclude circuitry to down-convert RF signals received from FEM circuitry1008 and provide baseband signals to baseband circuitry 1004. RFcircuitry 1006 may also include a transmit signal path which may includecircuitry to up-convert baseband signals provided by the basebandcircuitry 1004 and provide RF output signals to FEM circuitry 1008 fortransmission.

In some embodiments, RF circuitry 1006 may include a receive signal pathand a transmit signal path. The receive signal path of RF circuitry 1006may include mixer circuitry 1006 a, amplifier circuitry 1006 b andfilter circuitry 1006 c. The transmit signal path of RF circuitry 1006may include filter circuitry 1006 c and mixer circuitry 1006 a. RFcircuitry 1006 may also include synthesizer circuitry 1006 d forsynthesizing a frequency for use by the mixer circuitry 1006 a of thereceive signal path and the transmit signal path. In some embodiments,the mixer circuitry 1006 a of the receive signal path may be configuredto down-convert RF signals received from FEM circuitry 1008 based on thesynthesized frequency provided by synthesizer circuitry 1006 d.Amplifier circuitry 1006 b may be configured to amplify thedown-converted signals and the filter circuitry 1006 c may be a low-passfilter (LPF) or band-pass filter (BPF) configured to remove unwantedsignals from the down-converted signals to generate output basebandsignals. Output baseband signals may be provided to baseband circuitry1004 for further processing. In some embodiments, the output basebandsignals may be zero-frequency baseband signals, although this may beoptional. In some embodiments, mixer circuitry 1006 a of the receivesignal path may comprise passive mixers, although the scope of theembodiments is not limited in this respect.

In some embodiments, mixer circuitry 1006 a of the transmit signal pathmay be configured to up-convert input baseband signals based on thesynthesized frequency provided by synthesizer circuitry 1006 d togenerate RF output signals for FEM circuitry 1008. The baseband signalsmay be provided by the baseband circuitry 1004 and may be filtered byfilter circuitry 1006 c. Filter circuitry 1006 c may include a low-passfilter (LPF), although the scope of the embodiments is not limited inthis respect.

In some embodiments, mixer circuitry 1006 a of the receive signal pathand the mixer circuitry 1006 a of the transmit signal path may includetwo or more mixers and may be arranged for quadrature down conversionand/or up conversion respectively. In some embodiments, mixer circuitry1006 a of the receive signal path and the mixer circuitry 1006 a of thetransmit signal path may include two or more mixers and may be arrangedfor image rejection, for example Hartley image rejection. In someembodiments, mixer circuitry 1006 a of the receive signal path and themixer circuitry 1006 a may be arranged for direct down conversion and/ordirect up conversion, respectively. In some embodiments, mixer circuitry1006 a of the receive signal path and mixer circuitry 1006 a of thetransmit signal path may be configured for super-heterodyne operation.

In some embodiments, the output baseband signals and the input basebandsignals may be analog baseband signals, although the scope of theembodiments is not limited in this respect. In some alternateembodiments, the output baseband signals and the input baseband signalsmay be digital baseband signals. In these alternate embodiments, RFcircuitry 1006 may include analog-to-digital converter (ADC) anddigital-to-analog converter (DAC) circuitry, and baseband circuitry 1004may include a digital baseband interface to communicate with RFcircuitry 1006. In some dual-mode embodiments, separate radio integratedcircuit (IC) circuitry may be provided for processing signals for one ormore spectra, although the scope of the embodiments is not limited inthis respect.

In some embodiments, synthesizer circuitry 1006 d may be a fractional-Nsynthesizer or a fractional N/N+1 synthesizer, although the scope of theembodiments is not limited in this respect as other types of frequencysynthesizers may be suitable. For example, synthesizer circuitry 1006 dmay be a delta-sigma synthesizer, a frequency multiplier, or asynthesizer comprising a phase-locked loop with a frequency divider.

Synthesizer circuitry 1006 d may be configured to synthesize an outputfrequency for use by mixer circuitry 1006 a of RF circuitry 1006 basedon a frequency input and a divider control input. In some embodiments,synthesizer circuitry 1006 d may be a fractional N/N+1 synthesizer.

In some embodiments, frequency input may be provided by a voltagecontrolled oscillator (VCO), although this may be optional. Dividercontrol input may be provided by either baseband circuitry 1004 orapplications processor 1002 depending on the desired output frequency.In some embodiments, a divider control input (e.g., N) may be determinedfrom a look-up table based on a channel indicated by applicationsprocessor 1002.

Synthesizer circuitry 1006 d of RF circuitry 1006 may include a divider,a delay-locked loop (DLL), a multiplexer and a phase accumulator. Insome embodiments, the divider may be a dual modulus divider (DMD) andthe phase accumulator may be a digital phase accumulator (DPA). In someembodiments, the DMD may be configured to divide the input signal byeither N or N+1, for example based on a carry out, to provide afractional division ratio. In some example embodiments, the DLL mayinclude a set of cascaded, tunable, delay elements, a phase detector, acharge pump and a D-type flip-flop. In these embodiments, the delayelements may be configured to break a VCO period up into Nd equalpackets of phase, where Nd is the number of delay elements in the delayline. In this way, the DLL provides negative feedback to help ensurethat the total delay through the delay line is one VCO cycle.

In some embodiments, synthesizer circuitry 1006 d may be configured togenerate a carrier frequency as the output frequency, while in otherembodiments, the output frequency may be a multiple of the carrierfrequency, for example twice the carrier frequency, four times thecarrier frequency, and so on, and used in conjunction with quadraturegenerator and divider circuitry to generate multiple signals at thecarrier frequency with multiple different phases with respect to eachother. In some embodiments, the output frequency may be a localoscillator (LO) frequency (fLO). In some embodiments, RF circuitry 1006may include an in-phase and quadrature (IQ) and/or polar converter.

FEM circuitry 1008 may include a receive signal path which may includecircuitry configured to operate on RF signals received from one or moreantennas 1010, amplify the received signals and provide the amplifiedversions of the received signals to the RF circuitry 1006 for furtherprocessing. FEM circuitry 1008 may also include a transmit signal pathwhich may include circuitry configured to amplify signals fortransmission provided by RF circuitry 1006 for transmission by one ormore of the one or more antennas 1010.

In some embodiments, FEM circuitry 1008 may include a transmit/receive(TX/RX) switch to switch between transmit mode and receive modeoperation. FEM circuitry 1008 may include a receive signal path and atransmit signal path. The receive signal path of FEM circuitry 1008 mayinclude a low-noise amplifier (LNA) to amplify received RF signals andto provide the amplified received RF signals as an output, for exampleto RF circuitry 1006. The transmit signal path of FEM circuitry 1008 mayinclude a power amplifier (PA) to amplify input RF signals, for exampleprovided by RF circuitry 1006, and one or more filters to generate RFsignals for subsequent transmission, for example by one or more ofantennas 1010. In some embodiments, eNB device 1000 may includeadditional elements such as, for example, memory and/or storage,display, camera, sensor, and/or input/output (I/O) interface, althoughthe scope of the claimed subject matter is not limited in this respect.

The following are example implementations of the subject matterdescribed herein. It should be noted that any of the examples and thevariations thereof described herein may be used in any permutation orcombination of any other one or more examples or variations, althoughthe scope of the claimed subject matter is not limited in theserespects. In example one, an apparatus of an evolved NodeB (eNB)comprising circuitry to configure, via baseband processing circuitry,one or more parameters for a Fifth Generation (5G) master informationblock (xMIB), wherein the xMIB contains at least one of the followingparameters: downlink system bandwidth, system frame number (SFN), orconfiguration for other physical channels, or a combination thereof, andtransmit, via radio-frequency processing circuitry, the xMIB via a 5Gphysical broadcast channel (xPBCH) on a predefined resource. In exampletwo, the apparatus may include the subject matter of example one or anyof the examples described herein, wherein the configuration of otherphysical channels comprises a 5G physical downlink control channel(xPDCCH) configuration for a common search space. In example three, theapparatus may include the subject matter of example one or any of theexamples described herein, and further may comprise circuitry to apply acyclic redundancy check (CRC) is attached to the xMIB. In example four,the apparatus may include the subject matter of example one or any ofthe examples described herein, wherein the CRC comprises 16-bits or24-bits, and wherein the CRC is masked with a codeword corresponding toa number of transmit antenna ports. In example five, the apparatus mayinclude the subject matter of example one or any of the examplesdescribed herein, wherein a CRC mask with a codeword corresponding tothe number of transmit antenna ports is not utilized for the xPBCHtransmission. In example six, the apparatus may include the subjectmatter of example one or any of the examples described herein, whereinthe CRC is masked with a least significant bit (LSB) of a system framenumber (SFN). In example seven, the apparatus may include the subjectmatter of example one or any of the examples described herein, andfurther may comprise circuitry to apply a Tail Biting Convolutional Code(TBCC) to the CRC-attached xMIB. In example eight, the apparatus mayinclude the subject matter of example one or any of the examplesdescribed herein, and further may comprise baseband processing circuitryto perform rate matching to fill out available resource elements (REs)for xPBCH transmission. In example nine, the apparatus may include thesubject matter of example one or any of the examples described herein,and further may comprise baseband processing circuitry to performscrambling on the encoded bits. In example ten, the apparatus mayinclude the subject matter of example one or any of the examplesdescribed herein, wherein a scrambling sequence is initialized with aphysical cell identifier (ID). In example eleven, the apparatus mayinclude the subject matter of example one or any of the examplesdescribed herein, and further may comprise baseband processing circuitryto initialize a sequence is initialized with a predefined value, or acluster or a sub-cluster identifier (ID), wherein multiple eNBs transmitthe xPBCH simultaneously on a same time resource and a same frequencyresource. In example twelve, the apparatus may include the subjectmatter of example one or any of the examples described herein, andfurther may comprise baseband processing circuitry to modulate the xPBCHtransmission with quadrature phase shift keying (QPSK).

In example thirteen, one or more computer-readable media may haveinstructions stored thereon that, if executed by an evolved NodeB (eNB),result in configuring one or more parameters for a Fifth Generation (5G)master information block (xMIB) for a 5G physical broadcast channeltransmission (xPBCH), applying a Demodulation Reference Symbol (DM-RS)based transmission for the xPBCH transmission, wherein a samebeamforming weight is applied for both DM-RS and for data symbolsallocated for the xPBCH, and transmitting the xMIB via the xPBCH on apredefined resource. In example fourteen, the one or morecomputer-readable media may include the subject matter of examplethirteen or any of the examples described herein, wherein single layertransmission is applied for the xPBCH transmission. In example fifteen,the one or more computer-readable media may include the subject matterof example thirteen or any of the examples described herein, wherein theinstructions, if executed by the eNB, further result in applyingtransmit diversity for the xPBCH transmission for two or more antennaports. In example sixteen, the one or more computer-readable media mayinclude the subject matter of example thirteen or any of the examplesdescribed herein, wherein a time resource in term of symbol, slot,subframe or frame index and frequency resource in term of subcarrier andphysical resource block (PRB) index for the xPBCH transmission ispredefined, wherein the xPBCH is transmitted in a same subframe as a 5Gprimary synchronization signal (xPSS) or a 5G secondary synchronizationsignal (xSSS), or wherein the xPBCH is transmitted within a samesub-band as the xPSS or the xSSS, or a the sub-band adjacent to the xPSSor the xSSS. In example seventeen, the one or more computer-readablemedia may include the subject matter of example thirteen or any of theexamples described herein, wherein a fixed subframe gap between thetransmission of the xPBCH and the xPSS or the xSSS is specified. Inexample eighteen, the one or more computer-readable media may includethe subject matter of example thirteen or any of the examples describedherein, wherein a single xPBCH block is transmitted within a xPBCHtransmission period, or wherein multiple xPBCH blocks are transmittedwithin a xPBCH transmission period. In example nineteen, the one or morecomputer-readable media may include the subject matter of examplethirteen or any of the examples described herein, wherein theinstructions, if executed by the eNB, further result in using a transmitbeamformed xPBCH or a repeated xPBCH for a mid-band or a high-bandcarrier frequency. In example twenty, the one or more computer-readablemedia may include the subject matter of example thirteen or any of theexamples described herein, wherein a transmit beam pattern is up toimplementation by the eNB, and wherein user equipment (UE) measuresDemodulation Reference Symbol (DM-RS) energy on each xPBCH resource todecode the xPBCH. In example twenty-one, the one or morecomputer-readable media may include the subject matter of examplethirteen or any of the examples described herein, wherein a transmitbeam index or a time or frequency resource for the xPBCH transmissioncomprises a function of a transmit beam index of a 5G primarysynchronization signal (xPSS), a 5G secondary synchronization signal(xSSS), or a cell identifier (ID), or a combination thereof. In exampletwenty-two, the one or more computer-readable media may include thesubject matter of example thirteen or any of the examples describedherein, wherein xPBCH transmit beam to sub-band mapping is circularlyshifted over different xPBCH blocks. In example twenty-three, the one ormore computer-readable media may include the subject matter of examplethirteen or any of the examples described herein, wherein different eNBstransmit the xPBCH block in a different time resource, or a differentfrequency resource, or a combination thereof, for cooperative xPBCHtransmission. In example twenty-four, the one or more computer-readablemedia may include the subject matter of example thirteen or any of theexamples described herein, wherein a xPBCH resource size within onexPBCH transmission period accommodates a maximum number of beam setswithin a cell or within a network, wherein each beam set comprises oneor more beams from different eNBs or different array antennas within asame eNB, and wherein each beam set is mapped to a unique time resource,or a unique frequency resource, or a combination thereof, for xPBCHtransmission.

Although the claimed subject matter has been described with a certaindegree of particularity, it should be recognized that elements thereofmay be altered by persons skilled in the art without departing from thespirit and/or scope of claimed subject matter. It is believed that thesubject matter pertaining to physical broadcast channel design and manyof its attendant utilities will be understood by the forgoingdescription, and it will be apparent that various changes may be made inthe form, construction and/or arrangement of the components thereofwithout departing from the scope and/or spirit of the claimed subjectmatter or without sacrificing all of its material advantages, the formherein before described being merely an explanatory embodiment thereof,and/or further without providing substantial change thereto. It is theintention of the claims to encompass and/or include such changes.

1. (canceled)
 2. An apparatus of a base station comprising circuitry to:configure, via baseband processing circuitry, one or more masterinformation blocks (MIB), wherein the MIB contains at least one of thefollowing parameters: downlink system bandwidth, system frame number(SFN), or configuration for other physical channels; generate a physicalbroadcast channel (PBCH) from the MIB, wherein the baseband processingcircuitry attaches a 24-bit cyclic redundancy check (CRC) to the MIB andscrambles the PBCH using a least significant bit of the SFN; andtransmit, via radio-frequency processing circuitry, the MIB using aDemodulation Reference Symbol (DM-RS) based transmission of the PBCH. 3.The base station of claim 2, wherein the downlink system bandwidthcomprises a subcarrier spacing.
 4. The base station of claim 2, whereinthe configuration for other physical channels comprises a PhysicalDownlink Control Channel (PDCCH) configuration.
 5. The base station ofclaim 4, wherein the PDCCH configuration is included in a systeminformation block (SIB).
 6. The base station of claim 2, wherein the CRCis generated based on a size of the MIB and a number of parity bits. 7.The base station of claim 2, wherein the MIB is mapped to one or moreOrthogonal Frequency Division Multiplexing (OFDM) symbols of the DM-RSbased transmission.
 8. A processor configured to: configure one or moremaster information blocks (MIB), wherein the MIB contains at least oneof the following parameters: downlink system bandwidth, system framenumber (SFN), or configuration for other physical channels; generate aphysical broadcast channel (PBCH) from the MIB, wherein a 24-bit cyclicredundancy check (CRC) is attached to the MIB and the PBCH is scrambledusing a least significant bit of the SFN; and transmit the MIB using aDemodulation Reference Symbol (DM-RS) based transmission of the PBCH. 9.The processor of claim 8, wherein the downlink system bandwidthcomprises a subcarrier spacing.
 10. The processor of claim 8, whereinthe configuration for other physical channels comprises a PhysicalDownlink Control Channel (PDCCH) configuration.
 11. The processor ofclaim 10, wherein the PDCCH configuration is included in a systeminformation block (SIB).
 12. The processor of claim 8, wherein the CRCis generated based on a size of the MIB and a number of parity bits. 13.The processor of claim 8, wherein the MIB is mapped to one or moreOrthogonal Frequency Division Multiplexing (OFDM) symbols of the DM-RSbased transmission.
 14. A method, comprising: configuring one or moremaster information blocks (MIB), wherein the MIB contains at least oneof the following parameters: downlink system bandwidth, system framenumber (SFN), or configuration for other physical channels; generating aphysical broadcast channel (PBCH) from the MIB, wherein a 24-bit cyclicredundancy check (CRC) is attached to the MIB and the PBCH is scrambledusing a least significant bit of the SFN; and transmitting the MIB usinga Demodulation Reference Symbol (DM-RS) based transmission of the PBCH.15. The method of claim 14, wherein the downlink system bandwidthcomprises a subcarrier spacing.
 16. The method of claim 14, wherein theconfiguration for other physical channels comprises a Physical DownlinkControl Channel (PDCCH) configuration.
 17. The method of claim 16,wherein the PDCCH configuration is included in a system informationblock (SIB).
 18. The method of claim 14, wherein the CRC is generatedbased on a size of the MIB and a number of parity bits.
 19. The methodof claim 14, wherein the MIB is mapped to one or more OrthogonalFrequency Division Multiplexing (OFDM) symbols of the DM-RS basedtransmission.